David Dahle

David Dahle

Posted on 09/16/2014


Photo taken on September 13, 2014


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Voltage regulators

Voltage regulators
Regulators in the Marion, SD 23.9kV/4160V sub. Not sure what make these are, but MDU has one set of this exact same style of regulator on one of the remaining 4160V circuits in the downtown Bismarck sub (and those are black instead of 'institutional green' like these).

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David Dahle
David Dahle
Just noticed something - the regulator on the left is filled with PCB oil while the two on the right have non-PCB oil.
4 years ago.